Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun plenum

2 senses of plenum

Sense 1
plenum -- (a meeting of a legislative body at which all members are present; "the plenum will vote on all tax increases")
       => meeting, group meeting -- (a formally arranged gathering; "next year the meeting will be in Chicago"; "the meeting elected a chairperson")

Sense 2
plenum -- (an enclosed space in which the air pressure is higher than outside)
       => enclosure -- (a structure consisting of an area that has been enclosed for some purpose)